Syringe



A. BARTH Oct. 4 1927.

SYRINGE Filed Jan. l5 1926 Patented Get. 4, 1927.

UNITED STATES ADOLF EARTH, OF MUNICH. GERMANY.

SYRINGE.

Application filed January 15, 1926, Serial No. 81,477, and in GermanyNovember 11, 192 4.

My invention relates to syringes and more especially to a uterinesyringe of the kind in which the liquid supply tube is arranged within adischarge tube adapted to fill the entire vagina.

Devices of this kind as hitherto designed and which also serve forrinsing the vagina, ailord the possibility of injecting liquid. into theuterus, but a washing out of. disease bearers and the like which may bepresent in the uterus, cannot be effected.

In the syringe according to the present invention this is obtained owingto the fact that not only the part filling the vagina but also the partprojecting into the uterus is provided with a discharge tube. Thislatter discharge tube has a smaller diameter than the tube filling thevagina, and the air in the uterus together with the rinsing liquid cantherefor pass through the narrower discharge tube into the widerdischarge tube inserted in the vagina.

In the drawings afiixed to this specification and forming part thereof asyringe embodying my inventionis illustrated diagrammatically by way ofexample. In the drawings Fig. 1 is an axial section of the dischargetubes, showing the supply tubes in elevation.

Fig. 2 is an axial section of the supply tubes and the fillings mountedthereon.

Fig. 8 is a cross-section of the larger supply tube, and

Fig. 4 is a cross-section on the line A-B in Fig. 1. a

Referring to the drawings, 1 is the curved main supply tube, 2 is asleeve mounted on the free end of this tube and 1 is the narrower supplytube which is designed to be introduced in the uterus. On the free endof tube 1 is mounted a hollow syringe head 1 ending in a hemisphericalprojection. 4 are perforations adjoining the projection. 6 is the maindischarge tube designed to fill out the vagina and 6 is a cover closingsame and serving for mounting the smaller discharge or drain tube 5surrounding the smaller supply tube 1. The drain tube 5 has a number ofperforations, which also occur in the wall of the main discharge tube 6,which is closed at its bottom end by a cast piece 7 having an extension7 fitted into tube 6 by grinding and an outlet branch 7'. In the castpiece 7 the supply tube 1 is mounted for axial displacement. WVhen thetube 1 is thus displaced in the discharge 6, the end of the smallersupply tube 1 will be drawn further into the drain tube 1 until thehemispherical projection abuts against the free edge of the drain tube 1whereby the rinsing liquid supplied through tubes 1 and l is preventedfrom further escaping through the perforations .4 The amount ofdisplacement is regulated by means of a collar 8 mounted on the bottomend of the main supply tube 1.

The operation of this device is easily understood :the rinsing liquidentering through tubes 1 and 1 escapes through the perforations at andafter having rinsed the interior of the uterus passes through theperforations 5 into the drain tube 5 and the main discast piece 7 cannow be removed and all the parts can easily be cleaned.

I Wish it to be understood that I do not desire to be limited to the.exact details of construction shown and described, for obviousmodifications will occur to a person skilled in the art.

I claim;

1. Uterine syringe comprising liquid supplying means adapted to beintroduced through the vagina into the uterus, a main discharge tubesurrounding part of said supplying means, a separate drain tube ofsmaller diameter than said main discharge tube surrounding the endportion of said supplying means designed to be introduced in the uterus,a valve at the end of said end portion adapted to be closed by saiddrain tube, when said supplying means are displaced in axial directionand means for limiting such displacement.

2. Uterine syringe comprising liquid supplying means adapted to beintroduced through the vagina into the uterus, a main discharge tubesurrounding part of said supplying means, a Y separate drain tube of Jsmaller diameter than said main discharge tube surrounding the endportion of said supplying means designed to be introduced in the uterusand a perforated syringe head at the end of said supplying means, saidhead being arranged to be closed by said drain 10 tube, When saidsupplying means are displaced in axial direction.

In testimony whereof I affix my signature.

ADOLF BARTH.

